Improvement in stretchers for canvas



UNITED STATES PATENT GEEICE JARED B. FLGG, OF NEV HAVEN, AND GEORGE STORER, OF NEW BRITAIN, CONNECTICUT.

IMPROVEMENT IN STRETCHERS FOR CANVAS.

Specification forming part of Letters Patent No. 58,627, dated October 9, 1866.

To alt-whom it may concern:

Be it known that we, JA'RED B. FLAGG, of the city and county of N ew Haven, and GEORGE STORER, of New Britain, county of Hartford, both in the State of Connecticut, have invented certain new and useful Improvements iu Stretohers; and we do hereby declare that the same is described and represented in the following specification and drawings, and to enable others skilled in the art to make and use the same, we will proceed to describe its construction, referring to the drawings, in which the saine letters indicate like parts in each of the iigures.

rThe nature otl this improvement will be understood from the specification aud drawings.

The object desired to be attained thereby is to equally expand or contractthe two .sides or ends which come together to form a miter.

In the accompanying drawings, Figure l is a top or plan view. Fig. 2 shows a view of one corner from the opposite side; y

aI are the sides of the frame, made any desirable length, the ends of which are cut about a true miter, so that when put together they will form a frame of the desired size and shape, the ends of which are grooved of a greater or less depth to receive the perforated wedge b, or its equivalent, the object of which is to open and close the ends or corners of the frames.

c are wood or metal pieces, cut into the wood crosswise, or at right angle with the joint, and secured on one side Hush with the surface of the frame, the object of which is to hold the sides of the frame in their proper relative position with each other while the canvas, paper,

- or other (vegetable) material is being drawn over and tacked or otherwise secured onto the edge thereof.

The sides of the openings b m the perforated wedges b are made parallel with the wedgeedges, and are made to t closely and move freely in the groove d, formed in the ends or miter-joint of the sides. These wedges are held from dropping out of their place by the pins or screws c, which pass through the wood close inside of the opening in the wedge b, so that when the wedge is pushed forward the joint will be forced apart equally one side with the other, or by drawing back the wedge the sides or frame-work will also be drawn together in the proper manner. Thus we are enabled to produce any desired or requisite strain upon the frame or covering to hold itin its proper position without producing any excrescences upon the brick side surface of the frame-work. The construction of this frame is such that all of its parts for any given size frame may be made and put up in packages and transported to any place where they may be wanted for use before they are put together, thereby produciu g a cheaper, better, and more desirable frame for use.

Ve believe we have thus shown the nature, construction, and advantage of this improvement, so as to enable others skilled to make and use the same; therefore,

What we claim, and desire to secure by Letters Patent, is Y 1. The perforated wedge l), in combination with the groove` d, pins or screws e, and frame, substan tiall y as and for the purpose described.

2. In combination with the above, the metal or wood pieces c, substantially as and for the purpose described.

JAI-:ED B. ELAGG. pt. si GEORGE sToEEE. [ns] 

